I had a horse that was acting gassy and colicky. Figured it out it was the MSM after taking MSM and it made me sick to my stomach. Took him off the MSM and the problems ended.
cavyrunsbarrels - 2018-11-25 10:15 AM Well gosh dangit it's been over a week since I took him off it and he's no better. Back to the drawing board I guess...
That was the only thing I changed in regards to feed. As far as hay, that is supplied by my barn so it could have changed. Every bale is a little different. I'm pretty much at their mercy, but at least our current barn managers inspect the hay for mold before feeding it.